This is a Begonia and the bottom plant is one of the sisters of the Purple Passion Plant.

I hope I can successfully winter them indoors.

I hope so too. They are really nice looking.

the begonia may die back some, if it does, just trim it off and don't give up on it. even if it looks like it is dead to the top of the soil. water it lightly, and in the spring you have a real good chance of it coming back. Gramma had some that she did that way that i know she overwintered and they came back for more than 10 years!